Overridden movement function doesn't work

Question

I moved from C to C# so I am a novice in Object Oriented Programming. I wanted to implement OOP in my character movement, but it didn't work the way I expected.

My character is instantiated when the scene starts, but it doesn't move (maybe because of bad parameter passing).

I just want to control input from derived class which is giving my character the ability to sprint.

• characterB script is attached to character in Inspector
• that character is instantiated prefab and is instantiated when scene start
• inherited script which is overridden is giving ability to sprint to character
• photon is package for multiplayer games so you don't have to notice it

whole source code is so big, so i put there one method for movement and sorry for my weak english skillz

 //works like standard MonoBehaviour 
public abstract class characterMain : MonoBehaviourPunCallbacks
{
       
    // declaration of variables

    public virtual void Start()
    {
        RB = GetComponent<Rigidbody>(); 
    }

    protected virtual void movement(float horXF, float vertYF, bool sprintB)
    {
        //Debug.Log("movement function base class" + horF); // NOT responding
        groundDetect = Physics.Raycast(...); 

        if (standOnGround) 
        {
            direction = new Vector3(horXF, 0, vertYF) * Time.deltaTime * speed; 

            direction.Normalize(); 
            adjustSpeed = speed; 
            targetSpeed = transform.TransformDirection(direction) * adjustSpeed * Time.deltaTime;       
            RB.velocity = targetSpeed; 
        }
    }
}
  
public class characterB : characterMain
{

    [Header("Movement")]
    protected float horXF;
    protected float vertYF;
    [Header("sprint")]
    private bool sprintB;

    public void FixedUpdate()
    {
        if (!photonView.IsMine) return; //Photon

        //MOVEMENT INPUT
        horXF = Input.GetAxisRaw("Horizontal");
        vertYF = Input.GetAxisRaw("Vertical");
        //JUMP INPUT
        skokB = Input.GetKey(KeyCode.Space);
 
        movement(horXF, vertYF, sprintB);

        //Debug.Log("movement function" + horF); //responding
    }

    protected override void movement(float horXF,float vertYF,bool sprintB)
    {
        //Debug.Log("movement function" + horF); // NOT responding
     
        if (sprintB && ... ) //sprint 
        {
            base.movement(horXF, vertYF, sprintB);

            sprintB = bZrychlenieC && groundDetect && ... ; 
            if (sprintB) direction = new Vector3(0, 0, sprintSpeed) * Time.deltaTime;
        }
    }
}